Casement window operator and lock



y 1933. w. E. DRUMMOND CASEMENT WINDOW OPERATOR AND LOCK Filed Sept. 30. 1929 2 Sheets-Sheet l WN Q. m?

w Inflenfir ll/[12262222 Eflwzzmond $20M, M, K 1582 71 w luwu y 3- w. E. DRUMMOND 1,916,562

CASEMENT WINDOW OPERATOR AND LOCK Filed Sept. 30. 1929 2 Sheets-Sheet 2 Patented July 4, 1933 UNITED STATES WILLIAM E. DRUMMOND, or RIVER FOR-EST, "rumors oAsEMEN'r WINDOW orsaa'ron AND LooK The present invention relates to casement windows of the type having one or more swinging leaves or sashes, and more specifically to an improved construction of locking means to hold the sash in closed position and an improved construction of mounting the sash on the frame of the window.

One of the principal objects of my invention is to provide an improved latching means controlled by the casement stay and which secures the sash firmly at both the top and the bottom.'

Another object is to provide an improved stay means for holding the swing leaf or sash securely in either closed or adjusted open position and without likelihood of rattling or becoming unlocked.

These and other objects, that will be apparent through the further description of the invention, are attained in the "apparatus hereinafter described and. illustrated in the accompanying drawings, wherein:

Fig. 1 is an elevation showing the outside of the window withthe swing leaves closed, and also showing how one of the swing leaves is carried by the sub-frame;

Fig. 2 is a section taken onthe line 2"2 of Fig.1; v

Fig. 3 is a section corresponding to Figure 2 but showing one of the sashes open and illustrating the use of a. different form of screen;

Fig. 4: is a section, on a: large scale, taken on the line 4- of Figures 1 and 2;

Fig. 5 is a section similar to Fig. 4, but showing one of the swing leaves open and also showing, in dotted lines, the position .of the swing leaf when swung about itspivot in the sub-frame to allow access to the outside for cleaning, or for purposes of ventilation; a

Fig. 6 is an enlarged inverted sectional View taken on the line 6-6 of Figure 2 and looking upwardly, showing in detail the swing leaf stay in both open and closed p0 sition and its connection with the casement locking mechanism;

Fig. 7 is a fragmentary section taken on the line 7+7 of Fig. 6; j 4

Fig. 8 is an enlarged section taken on the Application filed September 30, 1929. Serial No. asset/e.

,line88 in Fig. 4: and showing the latch means for retaining the swing leaf in thesubframe; and

Fig. 9 is afragmentary view showing the casement stays in latched position as they would appear from the inside of the building. g j o Referring first'to Fig. 1,.it-will be-seen that the swing leaf or sash 1 is mounted upon a casement frame 2 which is adapted to be placed in the wall 8 of a building. The sash ,1 is hing'edly mounted upon the frame 2 by means of sub-frame 5, having top and bottom arms 7 and 8 extending along the top and bottom, respectively, of the sash 1, as shown in Fig. 1. The sub-frame 5 is provided with a pair of studs 9 and 10 upon which the sash 1 is pivotally carried, the sash 1 being provided with corresponding bearing brackets '11 and 12, secured the reto in any manner, as by rivet- 7 ing, welding, or thelike, and which are received upon'the studs 9 and 10. The subframe 5 is also provided with another pair of studs 18 and'1 l which are received in brackets 15 and 16 carried by the frame 2. The sash 1 is retained in position between the arms 7 and 8 by means of manually operated catch 17, see F ig. 5, :otatably secured to the snbframe 5 and adapt-ed, when rotated to an upper position,-to pass throughaslot 18 in the sash 1, and when rotated to a lower position to secure the sash 1 within theframe 5 The casement operator is seen to consist of v a member 19, hereinafter referred to as a stay or operator because of its function of moving and holding thesash in adjusted position, having a'handleQO and notches. 21. "The stay 19 operatesthrough a slot 22 in the bottom rail of the frame 2*and as shown best in Fig. 6 is pivoted to the swing sash .1 at 23. Adjacent to the slot 22 (see Figure 6) and mounted on the front of the frame 2 is a casing 24 containing 'a' spring pressed plunger 25 acting to automatically causethe notch-es 21 to engage a tongue 40 in one side of the slot 22, thus securely holding the sash 1 in open adjusted, position. As best seen in Figure 9 the plunger 25 overlies the slot 22 and, in urging the casement stay into engagement with the tongue 10, practically closes the slot 22 soas to effectively prevent the entrance of flies, mosquitoes and other insects,

()ne of the principal features of my invention lies in the means for locking the sash in closed position which is automatically controlled by the easement operator or stay 19 and which I will now describe. The pivoted end of the stay 19 is curved and is extended to form a sort of bell crank'lever 26 which carries a rod 27 extending along the bottom of the swing sash 1 and is operatively connected to a lower locking pawl 28 which is pivoted to the sash 1 An upright rod 29 is also connected to the pawl 28 and forms the means for transmitting the movement of the lower pawl 28 to an upper locking pawl 30, also pivoted to the sash 1.

Thus it is seen that by moving the easement operator 19 against the action of the spring pressed plunger the operator is released from its notched engagement with the frame 2 and can be moved to open or close the sash 1. The operator or stay 19 is pulled through the slot 22 to close the sash and, by virtue of the offset or curved pivoted end at 23 of the stay 19, the latches or pawls 28 and 30 are held in retracted position until the sash is tightly closed. Thereafter, the stay or casementoperator 19 can be turned in a counterclockwise direction relative to its pivoted mounting upon the sash 1 as shown in Fig. 6, thus moving the rod 27 to the left and causing the pawl 28 to be drawn down behind the flange 81 of the bottom rail of the frame 2. At the same time, the rod 29 causes the pawl 30 to be moved up behind the flange 32 of the top rail of the frame, thus securely locking the sash. When the sash 1 is closed and the operator 19 is in the position, shown in full lines in Fig. 5 the latter is dropped into a detent bracket 33 shown in Figs. 2 and 5, thus effectively preventing the sash from accidentally becoming unlocked.

Another feature of my invention is concerned with mounting the swing leaf or sash i above discloses frame.

1 so that the outside of the panes can be easily cleaned from the inside of the building, and I will now describe the means by which I accomplish this result. The description how the sash 1 is pivotally mounted on the studs 9 and 10 of a sub-frame. Normally, however, the sash is prevented from swinging in the sub-frame 5 by catch means 17 so that in opening or closing the sash l the sub-frame and sash act as a unit just as if the sash itself were hinged to the When it is desired to wash the winthe sash is opened to its widest position. The catch 17 is released, thus freeing the sash 1 and allowing it to be swung on the studs 9 and 10 to a position shown by the dotted lines in Fig. 5. There is then ample space between the sash 1 and the window frame 2 to allow the outside of the panes to dow panes be conveniently reached for cleaning. As shown in Fig. 5, the pivotal axes as defined by the studs 9 and 10, and by the pivot 28 are so spaced that the stay 19 serves as a stop against which the outer and lowermost flange of the sash 1 abuts when the latter is pivoted on the studs 9 and 10 to be cleaned, or to regulate the ventilation. Fig. 5 also clearly shows how the sash, when in a position shown by the dotted lines, acts as a deflector to direct air currents into the building. Thus my novel arrangement just described serves a double purpose. Figs. 2 to 5, inclusive, show how screen panels may be secured on the inside of the frame. The casing 2 1 is provided with a projection 3 1, which cooperates therewith to support the screen or storm sash at the bottom and hold it in close contact and flat against the inside of the window frame. At the top, any suitable releasable fastening means 41 may be employed to hold the screen or storm sash flat against the frame, such as screws, or rotating, sash catches, still leaving it easily removable for cleaning purposes. In place of the removable screen frame, grooved strips may be fastened to the sash frame 1 so as to guide. a roll-up screen, the box for which can be attached to the top of the frame 1, as shown at 12 in Fig. 2.

. The absence of all operating handles or the like, except the stay 19 which extends through the bottom rail of the frame and thus under the screen frame, allows the swing leaf or sash to be closed and locked, or unlocked and opened, without touching the screens, and with only one hand in a single motion.

If desired, turn buckles 36 and 37 may be provided in either or both of the rods 27and 29 by which the positionof the pawls 28 and 30 may be adjusted. Notches 38 and 39 may be provided in the flanges 81 and 32 of the window frame, although not necessary, to allow the pawls to clear when the sash 1 is closed. The tongue 40 is shown as slightly bent forwardly of the frame, and this is for the purpose of fitting more nearly perpendicularly within the notches 21 in all open positions of the sash so that the sash is held in position without rattling.v

In cases of double casement window s having two swing sashes it is not essential that my sub-frame construction be employed, although its use in such situations may be of considerable, advantage'in directing the air to secure better ventilation. The latching mechanism which I have disclosed can be applied to the edge of either single or double swing sashes, and in the latter case where the edge of one sash closes over the edge of the two or more swinging sashes to provide each Ti with the sub-frame and locking structure described above, I have, however, described only one sash, the others being'identical therewith. I have, moreover, shown the other sash as carried on hinges 51 and 52 secured to the frame 2 and as provided with a stay or operator 19 corresponding exactly with the stay or operator 19 described above, there being also a spring pressed plunger assembly 24 identical with that indicated byQ in Fig. 6 and described above. It is seen that sash 50 is closed first and that, by virtue of the overlapping flange 53 of the sash 1, when the latter sash is closed and locked both are securely closed, both stays being retained by the detent bracket 33, as shown inv 9.

It is to be understood, of course, that my invention is particularly applicable to windows having only a single swing leaf or sash, in which case it is desirable to provide the sub-frame and associated structure to allow for easy cleaning; It is to be understood, also, that while I have shown my invention as embodied in metal windows having the usual steel channel sections, it is just as applicable to windows having wood sashes and frames.

It is to be understood, further that while I have described only the specific embodiment of my invention illustrated in the accompanying drawings, it will be apparent that many modifications therein may occur to those skilled in the art without departing from the spirit of this invention, and I desire, therefore, that the same be limited only by the prior art or by the scope of the appended claims.

hat I claim as my invention and desire to secure by Letters Patent, is:

1. In a casement window frame, a sash, and means for mounting the sash on said frame for swinging movement about a plurality of axes and means for adjusting the position of the sash, said last mentioned means including a member acting as a stop and abutting against said sash for limiting the movement of said sash about one of said axes.

2. In a casement window comprising a frame and a sash hingedly carried by said frame, stay means pivotally connected with the sash adjacent the hinge sash for holding the same in adjusted position, such stay means comprising a rigid member pivotally connected at one end to the sash, said pivoted end being curved so that when the sash is closed the stay means can occupy a position alongside the frame, a pair of spaced locking pawls carried by the sash opposite the hinge side for securing the sash to the frame when in closed position, and connections between the locking pawls and the stay means whereby when the stay means is pivotally swung about its pivot on the sash to bring the stay means alongside the frame said pawls are moved into locking position.

.3. In a window comprising a main frame, a second frame pivoted thereto, a sash mounted in said second frame for pivotal movement, and locking means operable at will for preventing the pivotal movement of the sash in said second frame, stay means controlling the movement of the sash and second frame about the pivotal axis of the latter, the said stay means including a stay rod pivoted to the sash, said stay rod serving as a stop adapted to abut against the sash for limiting the extentv of pivotal movement of the sash in the second frame.

4. In a casement window having a frame and a swinging sash, means for locking said sash in closed position, said means including a stay pivoted to the sash and passing through a slot in the lowermost member of the frame, the pivoted end of said stay being provided with a right angle curved portion so that when. the sash is closed the stay extends through the frame and alongside and substantially parallel with the same frame member in closely spaced relation therewith, and a detent bracket secured to said frame and adapted to receive the stay when in closed position.

5. In a window havin a frame and a sash hingedly mounted on said frame, means for controlling the position of said sash, including a lever mounted on said sash and extendmg through a slot in the frame, said lever being arranged so that when the sash is closed the lever may be swung to engage the slot to hold the sash closed, additional catch means on said sash and adapted toengage portions of said frame, and operating connections between said catch means and'said lever, whereby when the lever is actuated to secure the sash in closed position by engaging the same said connections operate said catch means to additionally secure the sash.

6. In a window comprising a frame, a sash, and means hingedly mounting the sash on the frame, means for controlling the position of the sash, including a lever pivoted to the sash and extending through a slot in the frame;

said lever being notched and adapted to hold the sash in open adjusted position, a pair of locking pawls pivotally mounted on the sash and adapted to be turnedso as to lie behind a portion of the frame, means connecting the pawls to the lever whereby the former may be actuated by the latter, the lever being curved at its pivoted end so that after the sash is closed the lever may be turned so as to actuate the pawls and lock the sash in closed position and means for holding the lever in locked position.

7 In a casement window comprising a window frame, and a swinging sash hinged thereto, means for controlling the position of the sash relative to the frame including a notched casement stay permanently connected to move with the sash and provided with a plurality of notches, means on the frame to engage the notches, and spring means on the frame cooperating with the stay to cause said engagement, latches on the sash and having rod means for simultaneously moving the latches into engagement with the frame when the sash is closed, and operative connections between said stay and said rod means whereby after the sash is closed the stay can be moved to cause said latches to engage the frame.

8. In a window having a frame and a swinging sash, means for adjusting the position of and locking the sash including a notched stay having pivotal attachment to one rail of the sash, there being a slot in the frame substantially opposite the point of said pivotal attachment, the stay at its pivoted end having a curved portion so that the pivot point is oflset with respect to the body of the stay, means on the frame adjacent said slot for engagement with said notches, and a latching element on the sash operated by pivotal movement of the stay, said offset portion being adapted to embrace the frame to allow said stay to occupy a position alongside the frame, movement of the stay to said position operating the latching element to secure the sash in closed position.

9. In a window having a frame and a swinging sash, means for adjusting the position of and locking the sash including a stay having pivotal connection with one rail of the sash, there being a slot in the frame substantially opposite the point of said pivotal attachment, the stay at its pivoted end having a curved portion so that the pivot point is offset with respect to the body of the stay, said offset portion being adapted to embrace the frame to allow said stay to occupy a position alongside the frame, a portion of the stay contacting with the frame to exert a clamping action to hold the sash against the frame.

10. In a casement window comprising a window frame, and a swinging sash hinged thereto, means for controlling the position of the sash relative to the frame including a notched casement stay comprising a rigid member pivotally connected to move with the sash and provided with a plurality of notches,

there being a slot in the frame to receive said stay for limited lateral movement therein and the notches of the latter being adapted to engage one end of the slot, the stay at its pivoted end having a curved portion so that the pivot point is offset with respect to the body of the stay, said ofiset portion being adapted to embrace the frame to allow said stay to occupy a position alongside the frame, and spring means on the frame cooperating with the stay to cause said engagement.

11. In a casement window comprising a window frame, and a swinging sash hinged thereto, means for controlling the position of the sash relative to the frame including a notched casement stay comprising a rigid member pivotally connected to move with the sash and provided with a plurality of notches, there being a slot in the frame to receive said stay for limited lateral movement therein and the notches of the latter being adapted to engage one end of the slot, and biased means mounted on the inner face of the frame and reacting against the stay to cause said engagement and to close the slot against entrance of insects and the like.

12. In a casement Window comprising a window frame, and a swinging sash hinged thereto, means for controlling the posit-ion of the sash relative to the frame including a notched casement stay comprising a rigid member pivotally connected to move with the sash and provided with a plurality of notches, there being a slot in the frame to receive said stay for limited lateral movement therein and the notches of the latter being adapted to engage one end of the slot, the stay at its piv oted end having a curved portion so that the pivot point is offset with respect to the body of the stay, said offset portion being adapted to embrace the frame to allow said stay to occupy a position alongside the frame, and a spring plunger mounted on the frame adjacent said slot and cooperating with the stay to cause said engagement and with the slot to close the latter against the entrance of insects and the like.

In witness whereof, I hereunto subscribe my name this 20th day of September 1929.

WILLIAM E. DRUMMOND. 

